Outage on may 23rd.

Vid Vidmar*
Vid Vidmar*
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Topic 189223

May 23, 2005
The Einstein@Home servers will be shutdown on Thursday May 23 at 15:00. The servers will be moved into the new Einstein@Home computer cabinet.

Hmmm... May 23rd is today and it's Monday. The 15:00 hour... Is it UTC, GMT, CST or yet unknown timezone?

Happy crunching.

P.S.: don't burn me down for having fun with this post.

John McLeod VII
John McLeod VII
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Outage on may 23rd.

May 23, 2005
The Einstein@Home servers will be shutdown on Thursday May 23 at 15:00. The servers will be moved into the new Einstein@Home computer cabinet.

Hmmm... May 23rd is today and it's Monday. The 15:00 hour... Is it UTC, GMT, CST or yet unknown timezone?

Happy crunching.

P.S.: don't burn me down for having fun with this post.

My first thought was which year is the next Thursday, May 23rd? Talk about planning in advance, I believe that it is 2013, but I am not quite certain.

David Hammer
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My mistake. The post has

My mistake. The post has been corrected.

Thank you.

Divide Overflow
Divide Overflow
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Any useful estimate on how

Any useful estimate on how long the servers will be down?

history
history
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So, they are using a 2002

So, they are using a 2002 calender to search for gravity waves? This is a new twist on distributed computing. The physics of this could explain Venus. I can appreciate a slim budget. But calenders?

Bruce Allen
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Any useful estimate on how

Message 11857 in response to message 11855

Any useful estimate on how long the servers will be down?

We expect just a few hours.

This will (hopefully) be the last of our equipment moves. After this, the 2 UPS systems, the Einstein@Home server (and backup machine) and the Einstein@Home database server (and backup machine) will all be housed in a single unified rack.

We're also replacing the 2-disk RAID controllers for the OS with 8 disk RAID controllers. This gives us some additional hot spares for backups.

After this move the entire system will be 'hot swappable'. For example if there is hardware trouble on the database server, we can shut it down, pull all its disks out of RAID hot swap bays, move them into the same bays on the backup server, and boot the backup server.

We'll post some pictures of the machines at the end of the week.

Cheers,
Bruce

Director, Einstein@Home

AnRM
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Thanks for the info.....hope

Thanks for the info.....hope everything goes ok!

Daniel Michel
Daniel Michel
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the outage on may 23rd was

the outage on may 23rd was nothing compared to the outage on may 25th...thanks to all who had a hand in getting E&H back up...hope you can figure out what caused the outage.

Divide Overflow
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The best laid plans... My

The best laid plans...

My thanks as well for dealing so quickly with the sudden and unexpected problem.

David Hammer
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Thank you for your

Thank you for your understanding.

The problems started about 1:00am local time just as I was about to go to bed. The last 24 hours have been very busy. Admittedly I did get some sleep. Fortunately I got a lot of help and advice from Bruce and Paul Armor who is the head sysadmin for the lsc group at uwm.

Jean-Pierre Godet
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Yes, many thanks to all of

Yes, many thanks to all of us, David, Bruce, Paul !

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